Priya has a recipe for banana bread. She uses 7 1/2 cups of flower to make 3 loaves of banana bread. Andre will follow the same recipe. He will make b loaves banana bread using f cups of flower. Which of these equations represents the relationship between b and f?

A. b = 2/9 f
B. b = 2/5 f
C. b = 5/2 f
D. b = 9/2 f

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.